Conspire: c.1300, from O.Fr. conspirer, from L. conspirare "to agree, unite, plot," lit. "to breathe together," from com- "together" + spirare "to breathe" (see spirit). Conspiracy is from 1386; conspiracy theory is from 1909.
December 08, 2003
Also. It's people who question that stop revolutions (I have no problems with you though, I've never met you)